The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2020
Filed:
Sep. 19, 2017
Ford Global Technologies, Llc, Dearborn, MI (US);
William Gerald Barr, Chelmsford, GB;
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
An apparatus and method for improving warm-up of a catalytic aftertreatment device is disclosed in which the flow to a catalyst brick is controlled using a flow control device so as to restrict the flow of exhaust gas to only a central core of the catalyst brick when rapid heating of the catalyst brick is desired to reach a light-off temperature and to otherwise allow the flow of exhaust gas to the entire front face of the catalyst brick. By restricting the area of the catalyst brick to which exhaust gas can flow the energy density of the exhaust gas flowing to the central core is higher than it is when there is no restriction of flow thereby reducing the time needed to warm-up the catalyst brick to a minimum light-off temperature.